Conference Proceedings

!!3rd INTERNATIONAL CONFERENCE ON RESEARCH,

IMPLEMENTATION AND EDUCATION OF MATHEMATICS AND SCIENCE (3rd ICRIEMS)

Yogyakarta, 16 – 17 May 2016 !!

ISBN 978-602-74529-0-9 !!!!!!!!!!!!

The Global Challenges on The Development and The Education of Mathematics and Science

!!!!!!!!!!!!!!!

Faculty of Mathematics and Science Yogyakarta State University

!!

!3rd ICRIEMS : The Global Challenges on The Development and The Education of Mathematics and Science !!!! Mathematics & Mathematics Education ! Physics & Physics Education!! Chemistry & Chemistry Education ! Biology & Biology Education ! Science Education!!!!!Published by: Faculty of Mathematics and Science Yogyakarta State University Karangmalang, Yogyakarta 55281 Telp. (0274)550227, Fax. (0274)548203 © June 2016 Board of Reviewer Prof. Allen Price, Ph.D (Emmanuel College Boston, USA) Ana R. Otero, Ph.D (Emmanuel College Boston, USA) Dr. Michiel Doorman (Utrecht University, Netherlands) Prof. Dr. Marsigit (Yogyakarta State University) Prof. Dr. Mundilarto (Yogyakarta State University) Prof. Dr. Sriatun (Yogyakarta State University) Prof. Dr. A.K. Prodjosantoso (Yogyakarta State University) Prof. Dr. IGP. Suryadarma (Yogyakarta State University) Prof. Dr. Bambang Subali (Yogyakarta State University) Dr. Ariswan (Yogyakarta State University) Dr. Agus Maman Abadi (Yogyakarta State University) Dr. Dhoriva Urwatul U. (Yogyakarta State University) Dr. Sugiman (Yogyakarta State University) Dr. Karyati (Yogyakarta State University) Dr. Slamet Suyanto (Yogyakarta State University) Dr. Supahar (Yogyakarta State University) Dr. Siti Sulastri (Yogyakarta State University) Dr. Insih Wilujeng (Yogyakarta State University) Wahyu Setyaningrum, Ph.D. (Yogyakarta State University) Aryadi Wijaya, Ph.D. (Yogyakarta State University)

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Preface

Bless upon God Almighty such that this proceeding on 3rd International Conference on Research, Implementation, and Education of Mathematics and Sciences (ICRIEMS) may be compiled according to the schedule provided by the organizing committee. All of the articles in this proceeding are obtained by selection process by the reviewer team and have already been presented in the Conference on 16 – 17 May 2016 in the Faculty of Mathematics and Natural Sciences, Yogyakarta State University. This proceeding comprises 9 fields, that is mathematics, mathematics education, physics, physics education, chemistry, chemistry education, biology, biology education, and science education.

The theme of this 3rd ICRIEMS is ‘The Global Challenges on The Development and The Education of Mathematics and Science’. The main articles in this conference are given by six keynote speakers, which are Prof. Allen Price, Ph.D (Emmanuel College Boston USA), Ana R. Otero, Ph.D (Emmanuel College Boston USA), Dr. Michiel Doorman (Utrecht University, Netherlands), Prof. Dr. Marsigit, M.A (Yogyakarta State University), Asst. Prof. Dr. Warakorn Limbut (Prince of Songkla University, Thailand), and Prof. Dr. Rosly Jaafar (Universiti Pendidikan Sutan Idris, Malaysia). Besides the keynote and invited speakers, there are also parallel articles that presented the latest research results in the field of mathematics and sciences, and the education. These parallel session speakers come from researchers from Indonesia and abroad.

Hopefully, this proceeding may contribute in disseminating research results and studies in the field of Mathematics and Sciences and the Education such that they are accessible by many people and useful for the Nation Building.

Yogyakarta, May 2016

The Editor Team

*

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Table of Content

01 02 03 04

Front Cover Board of Reviewers Preface Forewords From The Head of Committee Forewords From The Dean of Faculty Table of Content Keynotes: Lesson Study Among The Move Of Educational Reformation in Indonesia Marsigit The Scientific Approach To Higher Education: Examples From Physics Education Research Allen Price Current Trends In Active Learning In The Sciences Ana R. Otero What Can Mathematics Education Contribute To Preparing Students For Our Future Society? Michiel Doorman Regular Papers:

page i

ii iii iv v

ix

U-1

U-17

U-21

U-25

MATHEMATICS 01 Spatial Extreme Value Modeling Using Max-Stable Processes

Approach (Case Study: Rainfall intensity in Ngawi) Arief Rachman Hakim, Sutikno, Dedy Dwi Prastyo

M – 1

02 Bivariate Binary Probit Model Approach for Birth Attendance and Labor Participation in West Papua Ayu Tri Septadianti, Vita Ratnasari, Ismaini Zain

M – 9

03 Parameter Estimation and Hypothesis Testing on Bivariate Generalized Poisson Regression Dian Kusuma Wardani, Purhadi, Wahyu Wibowo

M – 15

04 Scour Analysis at Seawall in Salurang, Sangihe Islands Regency, North Sulawesi Eunike Irene Kumaseh, Suntoyo, Muh.Zikra

M – 21

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09 Development Of Website “Measuring Instrument” Through Blended Learning Setuju

PE-51

10 Guided Inquiry Learning Using Virtual Laboratory To The Mastery Of The Concepts Of Physics Siti Juwariyah, Soepriyono Koes, Eny Latifah

PE-59

11 The Attainment Of Learning Outcomes Of Indonesian Qualification Framework Level 6 Among Physics Teachers Sarah, Siti

PE-65

12 Validity Of Collaborative Creativity Model Sri Astutik, Mohamad Nur, Endang Susantini

PE-73

13 Validity of Physics Module Using Cooperative Learning Model With Peer Assessment SriHartini,MustikaWati,SayidahMahtari,HayatulMu’awwanah

PE-79

14 Syiar Fisika Melalui Sosial Media: An Effort to Change the Habit of The College Students in The Use of Social Media Toni Kus Indratno, Ginanjar A. Muhammad, Yulien Akhmad Zein

PE-83

CHEMISTRY

01 Synthesis of in-house PEDOT/PSS dispersion and its performance

on OPV device Anang WM Diah

C-1

02 Chitosan-Key Lime Film for Food Preservation Azlan Kamari, Al Luqman Abdul Halim, Helwa Fathi Hadzri, Nor Haida Mohamad Yahaya

C-9

03 Indonesian Natural Zeolites as potential Adsorbent in Waste Cooking Oil Regeneration Dewi Yuanita Lestari, Dyah Purwanigsih, Antuni Wiyarsi

C-17

04 QSAR Study Of Antimalaria Of Xanthone Derivatives Using Multiple Linear Regression Methods Dhina Fitriastuti, Jumina, Iqmal Tahir and Priatmoko

C-23

05 Compound Analysis Of Kembang Bulan (Tithoniadiversifolia) Leaves Amanatie

C-31

06 Development of LiMn2O4 Cathode Materials for Lithium Battery Dyah Purwaningsih

C-41

07 Modification Of Lac Insect Secretion By Using Adipic Acid As C-49

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Matrix In Preparation Of Biocomposite Eli Rohaeti, Mujiyono, Rochmadi

08 Preparation And Characterization Of Cobalt Oxide Supported Tin Oxide (CoOx@SnO2) As Photocatalysts Etifebriani, A.K. Prodjosantoso, Cahyorini Kusumawardani

C-59

09 Effect Of Existence Zn2+ And Cu2+ Ions On Extraction Efficiency Of Gold(III) Using Polyethylene Glycol Gatut Ari Wardani, Sri Juari Santosa, Indriana Kartini

C-65

10 Comparative Study On The Impact Of Synthesis Route To The Photocatalytic Activity Of ZnO-SiO2 From Rice Husk Ash

Is Fatimah

C-69

11 An Investigation of Insect Ovipositing Repellent Activity of Andrographis paniculata Ness Leaf Extracts to Batrocera carambolae Nurcahyo Iman Prakoso, Mila Tria Nita, and Suputa

C-75

12 Isolation of Prenylated Flavone from the Bark of Artocarpus Elasticus Alor Island – East Nusa Tenggara Rosalina Y. Kurang, Taslim Ersam

C-79

13 Removal Characteristics of Silver with Ekectokinetic by Adsorption on Soil Mineral from Kotagede Yogyakarta RudySyahPutra,SigitBudiarjo,NefriYandi

C-83

14 Synthesis 1-Propanol from Propanoic Acid Salmahaminati, and Jumina

C-89

15 Paper Indicator Of Wora-Wari Flowers (Hibiscus rosa-sinensis L.) Siti Nuryanti

C-95

16 Development Of Potential Kunci Pepet (Kaempferia Rotunda) Rhizoma Plant As Antioxidant

Sri Atun and Arista Sundari

C-99

17 The Development of Cinnamalacetone Synthesis Methode Based on Green Chemistry Approach Sri Handayani

C-105

18 Enhancement of Wastewater Treatment from Chemical Laboratory Using Subsurface Bubble of Air Generator Rudy Syah Putra, Violla Bestari Ayu Sabrina Putri, Apri Rahmani Miftahul Hidayah, Dian Nurmala Sari, Andhika Ghia Prayojana, Agung Prayudia Maulana

C-111

19 Phytochemical and Antibacteral Activity Test Of Secondary C-115

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Metabolite Compound In Rhizophora mucronata Methanol Leaves Extracts Ernawati, Ita Hasmila

20 Review of the Molecularly Imprinted Hydrogel In Chemical Analysis Annisa Fillaeli

C-121

CHEMISTRY EDUCATION

01 Increasing Effectiveness Of Number Head Together (NHT) Model Through Integration Of Multiple Intelligences Theory In Chemistry Lesson Atiek Winarti

CE-1

02 Construction of Chemistry Teaching Material Using Organic-LED (OLED) Context for High School Students Indah Rizki Anugrah

CE-9

03 Chemistry Teachers’ Ability in Measuring Analitycal Thinking and Science Process Skills Irwanto, Eli Rohaeti

CE-17

04 The Improvement Of Students’ Achievement And Social Maturity On Chemistry Learning Through The Assistance Of Local Wisdom Videos Jaslin Ikhsan, Sulistiana Febriawati

CE-25

05 Eplovement Of Interactive Student Worksheet Of Chemistry Learning In Senior High School (SMA) Muharram, Adnan, Muhammad Anwar

CE-31

06 The Development Of Contextual Collaborative Learning Model For Chemical Bonding Course Gani Purwiandono, Is Fatimah, Salmahaminati, Mai Anugrahwati

CE-43

BIOLOGY

01 Microbiological Air Quality of Offices and Lecture Rooms in Yala Rajabhat University Abdullah Dolah Dalee, Nurainee Hayeeyusoh, Khosiya Sali, Zubaidah Hajiwangoh, Phurqanni Salaeh & Sukanya Madkep

B-1

02 Recruitment And Ability of Seed and Propagule to Grow in Mangrove Forest Segara Anakan Cilacap A. Tri Priantoro , P. Sunu Hardiyanta,SJ

B-9

03 Effects Of Peaberry Coffee On The Sexual Behavior and The Blood B-21

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PREPARATION AND CHARACTERIZATION OF

COBALT OXIDE SUPPORTED TIN OXIDE

(CoOx@SnO2) AS PHOTOCATALYSTS

Etifebriani, A.K. Prodjosantoso*, Cahyorini Kusumawardani♠

Chemical Education Department, FMIPA Universitas Negeri Yogyakarta

*e-mail: prodjosantoso@yahoo.com ♠e-mail: irienuny@yahoo.com

Abstract— This research was aimed to prepare and to characterize of CoOx@SnO2 which the

concentrations of Co 1% and 2,5%.

The compound of SnO2 was resulted by mixing SnCl4 with NH4OH solutions followed by

calcinating the obtained solid. The samples were characterized by using FTIR, XRD, UV-Vis

Spectroscopy, and SEM/EDX methods. Adsorption test was undertaken in the dark condition by

mixing of various concentrations of CoOx@SnO2 onto metyl orange solution.

The XRD analysis showed that the crystal size of CoOx@SnO2 with 1% and 2,5% of Co are 40.4971

nm and 34.7465 nm, respectively. The band gap energy of CoOx@SnO2 with 1% and 2,5% of Co

are 1.78 and 1.83 eV. The SEM images presented that the particle size of CoOx@SnO2 are between

0.089 and 0.380 μm. The EDX analysis ilustrated that the amount of Co in all samples of

CoOx@SnO2 is 0.1%. Adsorption capacity of the samples followed Langmuir isoterm pattern, i.e.

3.274394 and 3.877472 (x10-6) moles/gram for 1% and 2,5% Co, respectively.

Keywords: Adsorption, CoOx@SnO2, photocatalysts

I. INTRODUCTION

The development of industries may lead to the environment problems, for example pollution. The liquid waste generated from industrial activities contains hazardous and toxic materials which can interfere water biological processes. Heavy metals and organic waste derived from industries such as the metallurgy, tanning, fungicides, paint and textile industry, may cause water pollutions [1].

Textile waste contains dyes which are generally composed of azo compounds and derivatives in the from of benzene cluster. The benzen is very difficult to degrade naturally. Methyl orange is a synthetic dyestuff widely used in the textile industries. Methyl orange is also used in glass and paint [2]. Azo groups have azo chromophore (-N=N-) binding to the aromatics [3].

Textile waste degradations by using photocatalysts are well known. Using this method, the dye is broken down into simpler components which are environmentally friendly [4-6]. The ability of the UV in degrading organic substance can be optimized by using photocatalysts. Tin dioxide (SnO2) is capable in accelerating oxidation reaction induced by light. The excellence of semiconductor photo catalysts among others the effectiveness in degrading organic pollutants, low prices, the quickness, not toxic and the durability.

However, the use of SnO2 less effective as SnO2 shows the large bandgap (±3,6 eV) [7], which is only suitable in the UV ray condition. The use of SnO2 can be improved, such as by coating the material using CoOx having lower bandgap (Eg) which is better working in the IR rays than UV. A cobalt oxide supported tin dioxide (CoOx@SnO2) material is expected to accelerate oxidation reaction induced by lights.

In this paper, we report the effectiveness of degradation methyl orange by using cobalt oxide supported tin dioxide (CoOx@SnO2) material as photo-catalysts

.

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II. METHODS

Preparation of SnO2 and CoOx@SnO2

The compound of SnO2 is prepared by sol gel methods. One mole of SnCl4 is reacted with 4.1 moles of NH4OH followed by calcinating the obtained solid at the temperature of 900⁰C for 4 hours. The photo-catalysts of CoOx@SnO2 is prepared by means of mixing 1.5071 grams of SnO2 with 0.0291 grams of Co(NO3).6H2O, into which aquadest is added until the volume has reached 25 mL. The mixture was stirred and dried until almost dry. The solid was then filtered and calcined at 900⁰C for 4 hours.

Characterization of the CoOx@SnO2

The compound of Sn(OH)4 in characterized by using the FTIR-Horizon MB300 in the range of 400-4000 cm-1. The compound CoOx@SnO2 is also characterized by using XRD Lab-X Type 6000 Shimadzu Japan, by using the Cu Kα monochromatic radiation with a wavelength (λ) of 1.5406 Å, in the 2θ range of 3 to 90⁰.

Morphological, particle size and the element content in the compound are studied by using SEM/EDX JEOL JED-2300 operating at 20 keV. The bandgap energies are studied using UV-Vis 1700 Pharmaspec Spectrophotometer Specular Reflectance Attachment operating at 200-800 nm.

The adsorption ability of the samples were undertaken in the dark by mixing 10 mL methyl orange in a variation concentration (1.5, 2, 3, 4, 6, 8, and 10x10-6 mole/L) with 0.05 grams CoOx@SnO2, and stirred in a shaker for 24 hours. The absorbtions of aliquots were measured, by using spectronic 20 at a maximum wavelengths of (464 nm).

III. RESULT AND DISCUSSION

The reaction between SnCl4 and NH4OH produces white precipitate of Sn(OH)4. The FTIR

spectra of Sn(OH)4 can be seen in Figure 1 .

Figure 1. Infrared spectra of Sn(OH)4

Figure 1. exhibits infrared spectra of Sn(OH)4. Spectra in the range of 3700-3000 cm-1

indicates OH strain, 1639,37 cm

-1 –OH deformation of water, and 1454,22 cm

-1 –NH of ammonia [8]. The

infrared spectra also showed the presence of -NH line indicated the existence of NH4OH trapped in the Sn(OH)4 gel. The sharp line at 543,89 cm

-1 shows the Sn-O strain in Sn-O-H.

The XRD diffraction pattern of SnO2 sample can be seen in Figure 2. The SnO2 and CoOx@SnO2 samples were analyzed qualitatively by means of comparing the XRD diffraction pattern with those of JCPDS SnO2 standard.

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Figure 2. XRD diffraction pattern of SnO2 and CoOx@SnO2

Figure 2 shows the existence of strong peaks at 2θ = 26°, 33°, 38°, 51°, 54° and 57° in

accordance with the field of crystals (110), (101), (200), (211), (220), and (002) that are characteristic for the tetragonal SnO2 (JCPDS no.41-1445). Whilst, lines 2θ = 23°, 30°, 37°, 46°, 51°, and 58° in accordance with the field of crystals (110), (111), (021), (022), (130), and (113) is characteristic for the orthorhombic SnO2 (JCPDS no. 71-0652). These indicate that the samples comprise of two phases namely tetragonal and orthorhombic phases.

The SnO2 and CoOx@SnO2 crystallites were studied by applying Scherrer equation:

The SnO2 and CoOx@SnO2 crystallites size is shown in Table 1.

Table 1. The SnO2 and CoOx@SnO2 crystallites size

Co (%) in the

CoOx@SnO2 Crystallite size (nm)

0.00 42.0673

1.00 40.0868

2.50 34.7465

The SEM micrograph indicates that SnO2 and CoOx@SnO2 has irregular in shape, with sizes as seen in Table 2.

Table 2. Size particle compound SnO2 and CoOx@SnO2 1% and 2,5%

Samples Particle size (μm)

SnO2 0.080-1.006

CoOx@SnO2 1% 0.091-0.380

CoOx@SnO2 2,5% 0.089-0.151

Figure 3. SEM micrographs of SnO2 (a); CoOx@SnO2 1% (b); and CoOx@SnO2 2.5% (c)

The characterization of samples by using EDX method may gives information about the

percentages of Sn and Co in the compound of SnO2 and CoOx@SnO2. The element content of the SnO2 and CoOx@SnO2 can be seen in Table 3.

20 25 30 35 40 45 50 55 60

O

O O O OO O

= Ortorombik SnO2 (JCPDS no.71-0652)

= Tetragonal SnO2 (JCPDS no.41-1445)

CoOx@SnO

2 2,5%

CoOx@SnO

2 1%

SnO2

Ine

nsita

s R

ela

tif

2 (o)

(a) (b) (c)

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Table 3. Element content of the SnO2 and CoOx@SnO2

Catalyst Sn (%) Co (%)

SnO2 15.86 0

CoOx@SnO2

1%

14.43 0.1

CoOx@SnO2

2.5%

14.79 0.1

The EDX spectra indicates that impregnation of CoOx onto SnO2 was successful. In addition,

the maximum amount of CoOx impregnated onto SnO2 was ony 1%. UV-Vis spectrometer was used to collect the reflectance data needed to calculate the bandgap

energy (Eg) using Kubelka-Munk equation. The bandgap energy of SnO2 and CoOx@SnO2 are shown in Table 4.

Table 4. Bandgap energy (Eg) of SnO2 and CoOx@SnO2

Samples Energy gap

(eV)

SnO2 3.01

CoOx@SnO2 1% 1.78

CoOx@SnO2 2.5% 1.83

The presence of CoOx could reduce bandgap energy of SnO2 (Table 4). The adsorption

capacity of the samples were studied using Langmuir and Freundlich equations. The Langmuir isotherm adsorption can be calculated using the following equation:

Where C is the concentration of methyl orange after 24 hours (mol/L) and m is the amount of methyl orange adsorbed by 1 gram sample.

The Freundlich isotherm adsorption can be calculated using the following equation:

Table 5. Line Langmuir equation of SnO2 and SnO2 CoOx @ 1% and 2.5%

Catalysts The Langmuir equations

SnO2 Y = 0.6238x-0.8381

R2 = 0.9784

CoOx@SnO2

1%

Y = 0.3504x-0.4441

R2 = 0.9827

CoOx@SnO2

2.5%

Y = 0.2579x-0.3093

R2 = 0.98765

The R values of Langmuir isotherm adsorption pattern were higher than the Freundlich. Thus, it

can be concluded that the methyl orange adsorption on the SnO2 and CoOx@SnO2 1% and 2.5% catalysts follows the pattern of Langmuir isotherm.

Table 6. Adsorption capacity of SnO2 and CoOx@SnO2 1% and 2.5%

Catalysts

Adsorption

capacity (x10-6

)

(mol/g)

SnO2 1.603078

CoOx@SnO2 1% 3.274394

CoOx@SnO2 2.5% 3.877472

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IV. CONCLUSIONS

Compound SnO2 can be prepared by using the sol-gel method with SnCl4 and NH4OH as precursors. The SnO2 and CoOx@SnO2 shows tetragonal and orthorhombic crystal structures. The CoOx may decreased the bandgap of SnO2.

REFERENCES

[1]. Redhana, I.W. (1994). Penentuan Isoterm Adsorpsi Amonia dalam Larutan Air oleh Karbon Aktif pada Suhu Kamar. Laporan Penelitian (Tidak diterbitkan) Program Pra-S2 Kimia Pascasarjana. ITB.

[2]. Sabnis, R. W. (2010). Handbook of Biological Dyes and Stains Synthesis and Industrial Applications. United State of America: John Wiley & Sons.

[3]. Endang Widjajanti, Regina Tutik P. & M. Pranjoto Utomo. (2011). Pola Adsorpsi Zeolit Terhadap Pewarna Azo Metil Orange dan Metil Jingga. Proseding Seminar Nasional Kimia. 14 Mei 2011.

[4]. Cotton, F.A., Wilkinson, G. & Gaus, P.L. (1999). Basic Inorganic Chemistry. John Wiley & Sons, Inc: New York.