Enhanced Visible Light Photocatalytic Performance by Nanostructured Semiconductors with Glancing Angle Deposition Method

Abstract

The glancing angle deposition (GLAD) method in physical vapor deposition is proved to be a versatile tool to fabricate nanostructured TiO 2 as the photocatalyst on specific substrates to form self-standing structures, which are much easier to be recycled. And novel designs of doping, decorating photocatalytic active substance, are brought in to make TiO 2 respond to visible light. In this chapter, we introduce our previous works such as TiO 2 nanorods with CdS quantum dots, noble metallic nanoparticles, coating TiO 2 via atomic layer deposition (ALD), and so on.

Application of visible light active photocatalysis for water contaminants: A review

“…The physical vapor deposition (PVD) method shares a similar application with the CVD method. It deposits films or forms coatings that are transported through a vacuum or low‐pressure gaseous/plasma environment (Wang et al, 2014 ), such as coating TiO 2 (Shuang et al, 2016 ).…”

“…Pharmaceuticals and their metabolites, even at low concentrations, have potentially fatal effects on natural ecosystems and human health (He et al, 2020 ; Keshvadi et al, 2020 ). For example, the occurrence of antibiotics in an aquatic environment can develop antibiotic resistance (Ben et al, 2019 ; Walsh, 2013 ; Wang, Chen, et al, 2020 ). In addition, it has been shown that 58%–68% of consumed common mild analgesic medicine acetaminophen (ACE) is released into the environment, which may transform to N‐acetyl‐p benzoquinone‐imine causing protein denaturation, lipid peroxidation, and DNA damage to organisms (Behravesh et al, 2020 ; Tobajas et al, 2017 ).…”

“…To degrade LOM (lomefloxacin), Zhang et al ( 2020 ) fabricate Bi 2 O 3 /CuNiFe layered double hydroxide (LDH) composite photocatalyst through the co‐precipitation method, which removes 84.6% of LOM (10 mg/L) in 40 min. For antibiotic levofloxacin (LEV) treatment, Wang, Chen, et al ( 2020 ) prepared MnO@MnOx microspheres via the solvothermal method, which achieves 98.1% degradation and 81.4% mineralization in 30 min. To remove antibiotic ofloxacin (OFX), Geng et al ( 2019 ) prepared Co 3 (PO 4 ) 2 /Ag 3 PO 4 composites, which achieved 88.8% degradation efficiency in 5 min.…”