Assessing the photocatalytic transformation of norfloxacin by BiOBr/iron oxides hybrid photocatalyst: Kinetics, intermediates, and influencing factors

Zhou

et al. 2019

RSC Adv.

Section: View Article Onlinementioning

confidence: 99%

Visible-light photocatalytic performance, recovery and degradation mechanism of ternary magnetic Fe₃O₄/BiOBr/BiOI composite

Zhou

et al. 2019

RSC Adv.

“…Nitrate (NO 3 ‐ ) is ubiquitously existed in environment and known as the source of ·OH in natural water . Figure illustrated the influence of NO 3 ‐ (0.1~10 mmol/l) on photodegradation of TCE and inhibitory effect was observed in tested range.…”

Section: Resultsmentioning

confidence: 99%

Photocatalytic degradation of trichloroethylene over BiOCl under UV irradiation

Liu

Zhen

et al. 2018

Applied Organom Chemis

In this study, BiOCl samples were synthesized under different pH values and characterized by XRD, SEM, UV-vis DRS, BET, photoelectrochemical measurement and PL. The photocatalytic performances of the as-prepared samples were evaluated through the decomposition of trichloroethylene (TCE) under UV irradiation. The influences of several parameters such as solution pH and common inorganic anions on TCE removal were investigated. Results indicated that BiOCl-0.6 exhibited better photocatalytic performance than BiOCl-6.0 because of its higher migration ability of photo-induced carrier. The photocatalytic degradation of TCE over BiOCl-0.6 followed pseudo first-order kinetics and appeared to be more efficient in acidic solution than in alkaline. TCE was almost completely dechlorinated in 120 minutes. The inhibiting effect of naturally occurring anions was in the order of HCO 3 ->SO 4 2->NO 3 -, while Clexhibited a dual effect. Moreover, BiOCl-0.6 exhibited superior reusability after three cycles of repetition tests.

“…IPA and BQ were used as •OH and •O 2 − radical scavenge, respectively . MeOH was used as the scavenge of h + and •OH . As shown in Figure , the addition of 1 mM IPA had less effect on the degradation of RhB.…”

Section: Resultsmentioning

confidence: 99%

BiOCl/UiO‐66 composite with enhanced performance for photo‐assisted degradation of dye from water

Tong

Feng

et al. 2017

Applied Organom Chemis

Semiconductor‐based photocatalysis is an environmental friendly and cost‐effective technique for water treatment. Due to their unique properties, metal–organic frameworks (MOFs) are considered as ideal platform to develop composite photocatalyst. In this study, Bismuth oxychloride (BiOCl) was first attempt to be incorporated with highly stable MOFs, UiO‐66(Zr) by hydrothermal reaction. Different characterization methods including X‐ray diffraction, Scanning electron microscopy, Fourier transform infrared spectroscope, X‐ray photoelectron spectroscopy had been used to prove the successful synthesis of composite photocatalyst. The resultant BiOCl/UiO‐66 composite showed higher photodegradation performance of Rhodamine B (RhB) under ultraviolet and visible light irradiation than that of pristine materials and their mechanically mixed sample. In addition, the composite exhibited good structural stability and reusability. The photocatalytic mechanism of RhB degradation over the composite under visible light proceeded via a photosensitization process. A better adsorptivity of RhB and effective electron transfer within the hybrid material might be responsible for the enhanced photocatalytic performance.