Reza Darvishi Cheshmeh SOLTANI, Zohreh HAGHIGHAT

100114

Visible light photocatalysis of a textile dye over ZnO nanostructures covered on natural diatomite

In the present study, ZnO nanostructures were ultrasonically synthesized and immobilized on the surface of diatomite and used for visible light photocatalysis of Acid Red 88 (AR88) in the aqueous phase. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses were employed for characterization of the samples. The process was optimized via response surface methodology (RSM) on the basis of central composite design (CCD). Based on numerical optimization, for the maximized color removal of 96% the initial dye concentration, the catalyst dosage, the reaction time, and the initial pH were 13 mg/L, 1.5 g/L, 85 min, and 4, respectively. The initial pH produced the largest effect, while the adsorbent dosage represented the lowest individual effect on the photocatalysis of AR88. The reusability test showed a 20% reduction in decolorization efficiency (%) within four consecutive experimental runs. Overall, ZnO-diatomite nanocomposite can be applied as an efficient photocatalyst for the visible light photocatalysis of target organic dyes.
Keywords:

Organic dye, photocatalysis, visible light nanocrystalline ZnO, immobilization,

PDF
Turkish Journal of Chemistry-Cover
  • ISSN: 1300-0527
  • Yayın Aralığı: 6
  • Yayıncı: TÜBİTAK
Arşiv
Sayıdaki Diğer Makaleler

Ecofriendly one-pot synthesis and antiviral evaluation of novel pyrazolylpyrazolines of medicinal interest

Nany SERAG, Mohamad ABD EL-AZIZ, Magda ABDALLAH, Sobhi GOMHA

HASAN KÜÇÜKBAY, AKIN MUMCU, SUAT TEKİN, SÜLEYMAN SANDAL

Sobhi GOMHA, Magda ABDALLA, Mohamad Abd EL-AZIZ, Nany SERAG

Reza Darvishi Cheshmeh SOLTANI, Zohreh HAGHIGHAT

ESRA TATAR, SEVİL ŞENKARDEŞ, HASAN ERDİNÇ SELLİTEPE, ŞÜKRİYE GÜNİZ KÜÇÜKGÜZEL, ŞENGÜL ALPAY KARAOĞLU, ARİF BOZDEVECİ, ERIK DE CLERCQ, CHRISTOPHE PANNECOUQUE, TAİBİ BEN HADDA, İLKAY KÜÇÜKGÜZEL

Photocatalysis of formaldehyde in the aqueous phase over ZnO/diatomitenanocomposite

Reza DARVISHI CHESHMEH SOLTAN, Masumeh MASHAYEKHI, Mahdi SAFARI, Alireza KHATAEE

Said Ahmed Soliman GHOZLAN, Doaa Mohmed ABDELMONIEM, Amr Mohmed ABDELMONIEM, İsmail Abdelshafy ABDELHAMID

Magda ABDALLA, Sobhi GOMHA, Mohamad Abd ELAZIZ, Nany SERAG

Synthesis, and prediction of molecular properties and antimicrobial activity ofsome acylhydrazones derived fromN-(arylsulfonyl)methionine

Esra TATAR, Hasan Erdinç SELLİTEPE, Şengül Alpay KARAOĞLU, Arif BOZDEVECİ, Christophe PANNECOUQUE, Taibi BEN HADDA, Sevil ŞENKARDES, Sükriye Güniz KÜÇÜKGÜZEL, İlkay KÜÇÜKGÜZEL, Erik DE CLERCQ

Synthesis and application of polyvinylimidazole-based Br nsted acidic ionic liquidgrafted silica as an efficient heterogeneous catalyst in the preparation ofquinoxaline derivatives

Alireza SARDARIAN, Elaheh ATAOLLAHI, Bahman TAMAMI