Malaysian Journal of Analytical Sciences, Vol 27 No 4 (2023): 802 - 815

 

REVIEW OF MOLYBDENUM DISULFIDE PREPARATION AND ITS ROLE AS A PHOTOCATALYST TO DEGRADE ORGANIC CONTAMINANTS

 

(Ulasan Penyediaan Molibdenum Disulfida dan Peranannya Sebagai Pemangkin Fotodegradasi Pencemaran Organik)

 

Izyan Najwa Mohd Norsham 1, Nur Zatulhusna Zulkifli1, Kavirajaa Pandian Sambasevam1,2

Siti Nor Atika Baharin1,3*

 

1Advanced Material for Environmental Remediation (AMER) Research Group, Faculty of Applied Sciences,

Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, 72000 Kuala Pilah, Negeri Sembilan, Malaysia.

2Electrochemical Material and Sensor (EMas) Group, Universiti Teknologi MARA, 40450 Shah Alam Selangor, Malaysia

3Advanced Biomaterials & Carbon Development (ABCD), Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia

 

*Corresponding author: atikabaharin@uitm.edu.my

 

 

Received: 22 September 2022; Accepted: 23 July 2023; Published:  22 August 2023

 

 

Abstract

Photocatalytic degradation appeared as a future alternative for the removal of many organic contaminants with high efficiency and energy-saving technology. As a photocatalyst, molybdenum disulphide (MoS2) exhibits good photocatalytic properties due to great potential for organic contaminant degradation. It is ascribed that various approaches for MoS2 preparation serve a diverse number of exposed active sites that facilitate MoS2 efficiency for photocatalytic reaction. Several methods have been extensively applied to improve MoS2 photocatalytic efficiency, including synthesized different surface morphology and heterojunction formation with other semiconductors. Therefore, it will increase the photocatalytic activities of the composites by combining MoS2 with other semiconductor photocatalyst materials. Integration of MoS2 as a binary or ternary photocatalyst will produce a synergic effect that hinders the recombination process and enhancement of the surface areas. On the other hand, it improved on conductivity of the nanosheets, whereby it is believed to be able to deal with photocatalytic material challenges and provide efficient solutions to deal with degradation of organic contaminants.

 

Keywords: conducting polymer, metal disulphide, organic pollutants, photocatalytic degradation, sustainable water management

 

Abstrak

Degradasi fotokatalitik muncul sebagai alternatif masa depan untuk penyingkiran banyak bahan cemar organik dengan kecekapan tinggi dan teknologi penjimatan tenaga. Molibdenum disulfida (MoS2) sebagai fotomangkin mempamerkan sifat fotokatalitik yang baik kerana potensi besar untuk degradasi bahan cemar organik. Disifatkan bahawa pelbagai pendekatan penyediaan MoS2 menyediakan bilangan tapak aktif terdedah yang berbeza yang memudahkan kecekapan MoS2 untuk tindak balas fotokatalitik. Beberapa kaedah telah digunakan secara meluas untuk meningkatkan kecekapan fotokatalitik MoS2, termasuk morfologi permukaan yang berbeza yang disintesis dan pembentukan heterojunction dengan semikonduktor lain. Oleh itu, dengan menggabungkan MoS2 dengan bahan semikonduktor fotomangkin lain, ia akan meningkatkan aktiviti fotomangkin komposit. Penyepaduan MoS2 sebagai fotomangkin binari atau ternari akan menghasilkan kesan sinergik yang menghalang proses penggabungan semula dan peningkatan kawasan permukaan. Sebaliknya, ia bertambah baik dalam kekonduksian helaian nano di mana ia dipercayai mampu menangani cabaran bahan fotokatalitik dan menyediakan penyelesaian yang cekap untuk menangani degradasi bahan cemar organik

 

Kata kunci: pengalir polimer, logam disulfida, bahan pencemar organik, degradasi fotokatalitik, pengurusan air yang mampan

 

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