SUNLIGHT FOR REMEDIATION OF POLLUTED ENVIRONMENT
The day when the prehistoric man invented fire, the demand of energy started; at the same time environmental pollution also started from that day since combustion of fuel generates undesirable greenhouse gas. With the advent of civilization, both energy-crisis and anthropogenic pollution increased. Meanwhile the definition of civilization started changing during the industrial revolution. Life of people changed after industrial revolution and civilization demanded more and more energy every day. To generate such energy from conventional sources, we still have no other alternative than to pollute the environment. Other developmental activities also resulted in pollution of the environment. Consequently the conventional resources for energy generation are depleted and at the same time environment deteriorates. People started getting aware about the environment since 1980s. There are several remedial solutions for environmental problems using advanced technologies, but most of them, once again, need huge energy. For example, we have to boil water to get rid of the pathogens, we have to switch on UV lamps for detoxification of water. In an effluent-treatment plant there are pumps and other equipment that need energy. This is therefore a vicious cycle and to break the cycle, we must use renewable energy for environmental remediation.
Sukhatme SP and Nayak JK, Solar Energy: Principles of Thermal Collection and Storage; Third Edition, Tata-Mcgrew-Hill Publishing Company Limited (2008).
Kalogirou S, Solar energy engineering: Processes and systems, First Edition, Academic Press- Elsevier (2009).
Chakrabarti S, Sil D, B Chaudhuri and Bhattacharjee S, Comparison of the photocatalytic degradation of polyvinyl chloride and polystyrene with zinc oxide semiconductor catalyst under tropical sunlight, Chemical Technology – an Indian Journal published by Trade Science Inc, India (ISSN 0974-7443) 6: 58-64 (2012).
Mo J, Zhang Y, Xu Q, Lamson JJ, Zhao R, Photocatalytic purification of volatile organic compounds in indoor air: A literature review, Atmos Environ 43: 2229–2246 (2009)
Spasiano D, Marotta R, Malato S, Fernandez-Iba˜nez P, Di Somma I, Solar photocatalysis: Materials, reactors, some commercial, and pre-industrialized applications. A comprehensive approach Appl Catal B 170: 90–123 (2015)
Chakrabarti S, Water-Energy Nexus: Role of Solar Energy, Thought, Vol: XVIII, Issue 3&4, July-December 2013
Maeda K, Photocatalytic water splitting using semiconductor particles: History and recent developments; J Photochem Photobiol C-Photochem Rev 12: 237– 268 (2011)
Huang C-W, Liao C-H, Wub C-H, Wu JCS, Photocatalytic water splitting to produce hydrogen using multi-junction solar cell with different deposited thin films; Sol Energ Mater Sol Cell 107: 322–328 (2012)
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