Abstract
Water is an essential commodity whose quantity and quality needs to be secured for easier accessibility at both the industrial, public and household levels. However, its availability in adequate quality and quantity has continued to decline worldwide. Indeed, rise in human population coupled with the climate change phenomena have greatly impacted on the quality of water resources through increased organic and inorganic pollution. Rhodamine B (RhB) dye is a common organic pollutant majorly in industrial wastewater and with numerous environmental and human health effects. The application of graphitic carbon nitride (G-C3N4) in the purification of industrial wastewater to enhance the removal of RhB is a technology of interest to most environmental quality regulators and agencies. The study was therefore aimed at investigating the performance of graphitic carbon nitride doped with tungsten chloride in the degradation of organic dye pollutant rhodamine B dye from industrial wastewater. The study showed that the as-prepared hybrid photo catalyst exhibits an improved photo degradation performance because of its synergetic effect. Indeed, the photo excited electrons from g-C3N4 were able to efficiently separate and are injected to the conductive band of WO3. The optimum photo activity occurred at the optimum ratio of 0.25WO3/g- C3N4. There was also stability and efficiency within the hybrid catalyst within the photo degradation process. Indeed, the composite indicates a high activity for degradation of RhB under visible light irradiation. The presence of g-C3N4 proved to be beneficial for enhancement in photo catalytic activity of the g-C3N4-WO3 composite and proved to be one of the best alternative modes of n the degrading organic dye pollutant Rhodamine B dye from wastewater.
Highlights
Water is an essential commodity whose quantity and quality needs to be secured for easier accessibility at both the industrial, public and household levels (Boniface and Mwangi, 2002)
The presence of g-C3N4 proved to be beneficial for enhancement in photo catalytic activity of the g-C3N4-WO3 composite and proved to be one of the best alternative modes of n the degrading organic dye pollutant Rhodamine B dye from wastewater
The photo-excited electrons from the conduction band (CB) of g-C3N4 would be injected into the CB of WO3
Summary
Water is an essential commodity whose quantity and quality needs to be secured for easier accessibility at both the industrial, public and household levels (Boniface and Mwangi, 2002). The increased pollution of drinking water sources has created a worldwide clean water shortage and quality catastrophe, a situation that needs advanced and efficient water treatment techniques for improved safety of water for domestic use (Pang et al, 2016; Donde et al, 2018). Most chemical methods for removal of organic pollutants in waste water have proved to have an ecological and an overall environmental significance (REF). Conventional methods such as absorption, coagulation and use of membranes for depleting organic pollutants in wastewater have proved to be less effective considering that they still leave remnants, generate secondary pollutants and suffer from a high operation cost (Sielechi et al, 2010)
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