PMID- 34762883
OWN - NLM
STAT- MEDLINE
DCOM- 20220126
LR  - 20220126
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 291
IP  - Pt 2
DP  - 2022 Mar
TI  - Alginate biopolymer as a reactor container for copper oxide-tin oxide: Efficient 
      nanocatalyst for reduction of different pollutants.
PG  - 132811
LID - S0045-6535(21)03283-5 [pii]
LID - 10.1016/j.chemosphere.2021.132811 [doi]
AB  - The need of clean water demands to design an efficient catalytic system with high 
      effective and selective reduction of water pollutants. Here, we successfully 
      prepared copper oxide-tin oxide (CuO-SnO(2)) nanomaterial and further wrapped in 
      Na-alginate hydrogel (Alg/CuO-SnO(2)). CuO-SnO(2) and Alg/CuO-SnO(2) were 
      characterized by FESEM, EDS, FTIR-ATR, and XRD and tested for the reduction of 
      water pollutants. The catalytic ability of CuO-SnO(2) and Alg/CuO-SnO(2) was 
      examined for numerous pollutants like 4-nitrophenol (4-NP), methyl orange (MO), 
      congo red (CR), methylene blue (MB) and potassium ferricyanide (K(3)[Fe(CN)(6)]) 
      where the designed CuO-SnO(2) and Alg/CuO-SnO(2) nanocatalysts were most 
      selective toward MB reduction. Further on optimization of catalyst amount, 
      stability, and reducing agent amount, it was found that the increase of 
      nanocatalyst amount and NaBH(4) concentration increase the rate of MB reduction. 
      CuO-SnO(2) and Alg/CuO-SnO(2) nanocatalysts reduced MB in 3.0 min with reaction 
      rate constants (k(app)) of 1.2944 min(-1) and 1.2715 min(-1), respectively. 
      Additionally, Alg/CuO-SnO(2) nanocatalyst was easily recovered by simply pulling 
      hydrogel after completion of reaction and reused four times with no loss in 
      efficiency. Besides, Alg/CuO-SnO(2) nanocatalyst was further investigated in real 
      samples like sea water, irrigation water, well water, university wastewater and 
      found effective for MB reduction even in real samples.
CI  - Copyright (c) 2021 Elsevier Ltd. All rights reserved.
FAU - Khan, Sher Bahadar
AU  - Khan SB
AD  - Center of Excellence for Advanced Materials Research, King Abdulaziz University, 
      P. O. Box 80203, Jeddah, 21589, Saudi Arabia; Chemistry Department, Faculty of 
      Science, King Abdulaziz University, P. O. Box 80203, Jeddah, 21589, Saudi Arabia. 
      Electronic address: sbkhan@kau.edu.sa.
FAU - Akhtar, Kalsoom
AU  - Akhtar K
AD  - Chemistry Department, Faculty of Science, King Abdulaziz University, P. O. Box 
      80203, Jeddah, 21589, Saudi Arabia.
FAU - Bakhsh, Esraa M
AU  - Bakhsh EM
AD  - Chemistry Department, Faculty of Science, King Abdulaziz University, P. O. Box 
      80203, Jeddah, 21589, Saudi Arabia.
FAU - Kamal, Tahseen
AU  - Kamal T
AD  - Center of Excellence for Advanced Materials Research, King Abdulaziz University, 
      P. O. Box 80203, Jeddah, 21589, Saudi Arabia; Chemistry Department, Faculty of 
      Science, King Abdulaziz University, P. O. Box 80203, Jeddah, 21589, Saudi Arabia.
FAU - Asiri, Abdullah M
AU  - Asiri AM
AD  - Center of Excellence for Advanced Materials Research, King Abdulaziz University, 
      P. O. Box 80203, Jeddah, 21589, Saudi Arabia; Chemistry Department, Faculty of 
      Science, King Abdulaziz University, P. O. Box 80203, Jeddah, 21589, Saudi Arabia.
LA  - eng
PT  - Journal Article
DEP - 20211108
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Alginates)
RN  - 0 (Biopolymers)
RN  - 0 (Environmental Pollutants)
RN  - 0 (Oxides)
RN  - 0 (Tin Compounds)
RN  - 789U1901C5 (Copper)
RN  - KM7N50LOS6 (stannic oxide)
SB  - IM
MH  - *Alginates
MH  - Biopolymers
MH  - Catalysis
MH  - Copper
MH  - *Environmental Pollutants
MH  - Humans
MH  - Oxides
MH  - Tin Compounds
OTO - NOTNLM
OT  - Catalytic reduction
OT  - Copper oxide-tin oxide
OT  - Hydrogel
OT  - Na-alginate
OT  - Nanocatalyst
OT  - Water pollutants
EDAT- 2021/11/12 06:00
MHDA- 2022/01/27 06:00
CRDT- 2021/11/11 20:12
PHST- 2021/07/31 00:00 [received]
PHST- 2021/10/31 00:00 [revised]
PHST- 2021/11/04 00:00 [accepted]
PHST- 2021/11/12 06:00 [pubmed]
PHST- 2022/01/27 06:00 [medline]
PHST- 2021/11/11 20:12 [entrez]
AID - S0045-6535(21)03283-5 [pii]
AID - 10.1016/j.chemosphere.2021.132811 [doi]
PST - ppublish
SO  - Chemosphere. 2022 Mar;291(Pt 2):132811. doi: 10.1016/j.chemosphere.2021.132811. 
      Epub 2021 Nov 8.