Enhanced Photocatalytic Activity by Silver Metal Ion Exchanged NaY Zeolite Photocatalysts for the Degradation of Organic Contaminants and Dyes in Aqueous Medium

2008 ◽  
Vol 47 (20) ◽  
pp. 7545-7551 ◽  
Author(s):  
Rajesh J. Tayade ◽  
Praveen K. Surolia ◽  
Manoj A. Lazar ◽  
Raksh V. Jasra
Keyword(s):  
Photocatalytic Activity ◽  
Aqueous Medium ◽  
Organic Contaminants ◽  
Metal Ion ◽  
Nay Zeolite ◽  
Silver Metal

Selective Determination of Silver Metal Ion Using Polyamine‐Based Ratiometric Chemosensor in an Aqueous Medium and Its Real‐Time Applicability as a Silver Sink

2018 ◽  
Vol 3 (27) ◽  
pp. 7792-7799 ◽  
Author(s):  
Meenakshi Verma ◽  
Amanpreet Kaur ◽  
Harpreet Kaur ◽  
Navneet Kaur ◽  
Narinder Singh
Keyword(s):  
Aqueous Medium ◽  
Real Time ◽  
Metal Ion ◽  
Selective Determination ◽  
Silver Metal

Photophysical Properties of Metal Ion Functionalized NaY Zeolite

2014 ◽  
Vol 90 (3) ◽  
pp. 503-510 ◽  
Author(s):  
Tian-Wei Duan ◽  
Bing Yan
Keyword(s):  
Metal Ion ◽  
Photophysical Properties ◽  
Nay Zeolite

scholarly journals Effect of metal ion doping on the photocatalytic activity of aluminophosphates

2010 ◽  
Vol 122 (5) ◽  
pp. 771-785 ◽  
Author(s):  
Avijit Kumar Paul ◽  
Manikanda Prabu ◽  
Giridhar Madras ◽  
Srinivasan Natarajan
Keyword(s):  
Photocatalytic Activity ◽  
Metal Ion ◽  
Ion Doping

Effect of metal ion addition on structural characteristics and photocatalytic activity of ordered mesoporous titania

2019 ◽  
Vol 91 (3) ◽  
pp. 539-551 ◽  
Author(s):  
Ahmed Mudhafar Mohammed ◽  
Michael Sebek ◽  
Carsten Kreyenschulte ◽  
Henrik Lund ◽  
Jabor Rabeah ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Metal Ion ◽  
Structural Characteristics ◽  
Mesoporous Titania ◽  
Ordered Mesoporous

Extraction of Heavy Metals from Aqueous Medium by Husk Biomass: Adsorption Isotherm, Kinetic and Thermodynamic study

2019 ◽  
Vol 233 (2) ◽  
pp. 201-223 ◽  
Author(s):  
Khalida Naseem ◽  
Rahila Huma ◽  
Aiman Shahbaz ◽  
Jawaria Jamal ◽  
Muhammad Zia Ur Rehman ◽  
...  
Keyword(s):  
Metal Ions ◽  
Aqueous Medium ◽  
Contact Time ◽  
Metal Ion ◽  
Adsorption Process ◽  
Maximum Adsorption Capacity ◽  
Order Kinetic ◽  
Adsorbent Dosage ◽  
Adsorption Sites ◽  
Order Kinetic Model

Abstract This study describes the adsorption of Cu (II), Co (II) and Ni (II) ions from wastewater on Vigna radiata husk biomass. The ability of adsorbent to capture the metal ions has been found to be in the order of Ni (II)>Co (II) and Cu (II) depending upon the size and nature of metal ions to be adsorbed. It has been observed that percentage removal of Cu (II), Co (II) and Ni (II) ions increases with increase of adsorbent dosage, contact time and pH of the medium but up to a certain extent. Maximum adsorption capacity (qmax) for Cu (II), Co (II) and Ni (II) ions has been found to be 11.05, 15.04 and 19.88 mg/g, respectively, under optimum conditions of adsorbent dosage, contact time and pH of the medium. Langmuir model best fits the adsorption process with R2 value approaches to unity for all metal ions as compared to other models because adsorption sites are seemed to be equivalent and only monolayer adsorption may occur as a result of binding of metal ion with a functional moiety of adsorbent. Pseudo second order kinetic model best interprets the adsorption process of Cu (II), Co (II) and Ni (II) ions. Thermodynamic parameters such as negative value of Gibbs energy (∆G°) gives information about feasibility and spontaneity of the process. Adsorption process was found to be endothermic for Cu (II) ions while exothermic for Co (II) and Ni (II) ions as signified by the value of enthalpy change (∆H°). Husk biomass was recycled three times for removal of Ni (II) from aqueous medium to investigate its recoverability and reusability. Moreover V. radiata husk biomass has a potential to extract Cu (II) and Ni (II) from electroplating wastewater to overcome the industrial waste water pollution.

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