Photocatalytic activation of peroxymonosulfate by carbon quantum dots functionalized carbon nitride for efficient degradation of bisphenol A under visible-light irradiation

Novel Pyrolusite-Templated Biochar as an Outstanding Catalyst for Persulfate Activation: Structural Design, Synergistic Effect, and Mechanism

“…The byproducts generated in the PMC+PS system during BPA degradation are identified by LC-MS. Combined with previous studies in the literature, the products are summarized in Table S1. , Three potential BPA degradation pathways are proposed through a comprehensive analysis of these detected species , (Figure ). For pathway I, the reactive species ( • OH, SO 4 •– , and 1 O 2 ) attack the center carbon atom of the BPA ( m / z = 227), resulting in diphenylmethanone ( m / z = 181).…”

“…Combined with previous studies in the literature, the products are summarized in Table S1. 38,39 Three potential BPA degradation pathways are proposed through a comprehensive analysis of these detected species 40,41 1,2-diol (m/z = 179). In pathway III, the oxidation of BPA leads to the generation of monohydroxylated BPA (m/z = 243).…”

Environmental persistence, detection, and mitigation of endocrine disrupting contaminants in wastewater treatment plants – a review with a focus on tertiary treatment technologies

“…103,104 Ref. 105 activated peroxymonosulfate (PMS) – a commonly used persulfate – through photocatalysis of a carbon dot (CD) functionalized carbon nitride composite for the degradation of BPA from synthetic solutions under visible light. They evaluated the photocatalytic performance of the photocatalyst without CDs (termed “PCN”) and the photocatalyst with CDs (termed “PCNC-2”); the removal efficiency was 10% and 65% under visible light for 30 minutes, respectively.…”

Amine-Functionalized Crystalline Carbon Nanodots Decorated on Bi2WO6 Nanoplates as Solar Photocatalysts for Efficient Degradation of Tetracycline and Ciprofloxacin

“…Compared to pristine Bi 2 WO 6 , heterojunctions of Bi 2 WO 6 with any of the secondary photocatalysts, e.g., Bi 2 MoO 6 , SnS 2 , ZnWO 4 , and C 3 N 5 nanosheets, exhibited enhanced rates of photocatalytic degradation, owing to the formation of Z-scheme or S-scheme heterostructures. , In addition, the semiconductor-type photocatalyst comprising carbonaceous nanomaterials exhibited an enhanced rate of photocatalytic degradation. , The role of carbonaceous nanomaterials is attributed to various favorable phenomena, e.g., broad spectrum absorption of UV and visible light, separation of photoinduced electrons and holes, and electron transfer capabilities . Besides, carbon quantum dots act as photosensitizers for supplying electrons to the conduction bands of semiconductor photocatalysts . Furthermore, simplicity in the synthesis of carbon quantum dots together with chemical inertness, nontoxicity, and biocompatibility are beneficial for environmental applications .…”

“…40 Besides, carbon quantum dots act as photosensitizers for supplying electrons to the conduction bands of semiconductor photocatalysts. 41 Furthermore, simplicity in the synthesis of carbon quantum dots together with chemical inertness, nontoxicity, and biocompatibility are beneficial for environmental applications. 42 Considering the above features, we present here a systematic study on developing Bi 2 WO 6 nanoplate surfaces decorated with amine-functionalized crystalline carbon nanodots as photocatalysts for degradation of tetracycline (TC) and ciprofloxacin (CIP) as model antibiotics.…”