Conducting polymers/zinc oxide-based photocatalysts for environmental remediation: a review

Abstract

The accessibility to clean water is essential for humans, yet nearly 250 million people die yearly due to contamination by cholera, dysentery, arsenicosis, hepatitis A, polio, typhoid fever, schistosomiasis, malaria, and lead poisoning, according to the World Health Organization. Therefore, advanced materials and techniques are needed to remove contaminants. Here, we review nanohybrids combining conducting polymers and zinc oxide for the photocatalytic purification of waters, with focus on in situ polymerization, template synthesis, sol–gel method, and mixing of semiconductors. Advantages include less corrosion of zinc oxide, less charge recombination and more visible light absorption, up to 53%.

Fused deposition modelling approach using 3D printing and recycled industrial materials for a sustainable environment: a review

“…Recently, the issue of plastic recycling has come to the top of the list of critical environmental protection and waste management issues that need to be addressed, and for a good reason [ 47 ]. Many uses for polymer materials have been identified in both everyday life and industry, demonstrating their versatility [ 48 , 49 ]. The ongoing use of plastic wastes and their persistence and noxiousness when disposed of as garbage prompted the topic of plastic wastes to be raised.…”

Recent Advances and Perspectives of Nanotechnology in Anaerobic Digestion: A New Paradigm towards Sludge Biodegradability

“…However, the metal oxide NP (Fe 3 O 4 and Fe 2 O 4 ) was the opposite of nano adsorbent, since it can be easily recovered and separated after the treatment process. A monoclinically organized structural semiconductor copper (II) oxide contains a number of beneficial chemical and physical properties, such as solar energy efficiency, superconductivity at high temperatures, and relative stability, which are cheap in cost with improved antibacterial activity [42].…”

A highly efficient visible-light-driven photocatalytic fuel cell with ZnIn2S4/PANI/TiO2/Ti photoanode for simultaneous degradation of rhodamine B and electricity generation

“…26,27 Its distinctive delocalized p-p conjugate structure can induce fast photoinduced charge separation and reduce the charge recombination rate during the electron transfer. 28 Polyaniline (PANI) is one of the most common conductive polymers, which has the advantages of good stability, low cost, and non-toxicity. 29,30 More importantly, the bandgap of PANI is about 2.76 eV, which can be activated under visible-light irradiation.…”