Enhancing Z-scheme {001}/{110} junction in BiOCl with {110} surface oxygen vacancies for photocatalytic degradation of Rhodamine B and tetracycline

Sample Fabrication of BiOCl Nanosheets with Low Specific Surface Area for Efficient Photocatalytic Degradation of Organic Wastewater

“…8−12 Typical photocatalysts, represented by TiO 2 and ZnO, are widely used to study the degradation of organic pollutants. 11,13,14 However, most photocatalysts have a wide band gap, the light response range is limited to the UV region, 8,9,15 or the activity is low and the reaction speed is slow. These shortcomings place significant limitations on photocatalysis in dealing with environmental pollution.…”

“…The excessive use of organic matter in industrial and agricultural production activities has caused serious environmental pollution. , That has caused severe damage to the environment and living things. , Many techniques have been applied to the treatment of these organics, but due to the high stability of organic contaminants. ,− Current pollution treatment techniques have some limitations, such as incomplete treatment, low efficiency, and high cost . Photocatalysis is one of the most effective techniques to deal with environmental pollution, as it is low-cost, environmentally friendly, and efficient. − Typical photocatalysts, represented by TiO 2 and ZnO, are widely used to study the degradation of organic pollutants. ,, However, most photocatalysts have a wide band gap, the light response range is limited to the UV region, ,, or the activity is low and the reaction speed is slow. These shortcomings place significant limitations on photocatalysis in dealing with environmental pollution .…”

“…The BiOCl has a typical layered structure of bismuth halide oxide, which is composed of two layers of Cl ions intermixed with one layer of [Bi 2 O 2 ] 2+ . The degree of crystallization of the prepared BiOCl nanosheets in the [001] crystal direction is greatly improved, ,,, which is conducive to the construction of electric fields in the [Bi 2 O 2 ] 2+ cation layer and Cl – ion layer. The transfer and separation of photoinduced electron–hole pairs along the [001] direction are greatly facilitated.…”