Skip to main content

Montmorillonite-silica Nanocomposite for Dye Removal from Solution | Chapter 01 | Advances in Applied Science and Technology Vol. 3

Dyes  are  used  in  various  industries  such  as  pharmaceutical,  cosmetic,  paper,  leather,  food  stuff, plastics, and textile etc. The dye effluents are discharged into environment by either water or land. The discharge of these effluents into the receiving environments results in hazardous health problems as most of these dyes have carcinogenic effects on the living organisms. Congo red was removed on Montmorillonite-silica nanocomposite from solution by adsorption process. The adsorption parameters studied  were adsorbent  dose,  initial  concentration  and  contact  time.  The  optimum  adsorption parameters were found to be 2 mg/L, 1.5 g and 40 minutes for initial concentration, adsorbent dose and  contact  time  respectively  with  removal  percentage  of  84.10%.  Pseudo  first and  second  order kinetics were used for the studies. Pseudo second order best fit the adsorption process with R²= 1 than the Pseudo first order which has R²= 0.933. Experimental data were best fitted by the Langmuir Isotherm  with  R²=0.9024  other  than  the  Freundlich  Isotherm,  R²=0.568.  The  RL  of  0.994  of  the Langmuir  isotherm  shows  the  favourability  of  the  adsorption  process.  The  maximum  adsorption capacity by Langmuir isotherm was found to be 172. 40 mg/g. The adsorption process of Congo red was  carried  out  using  Montmorilonite  silica  nanocomposite.  From  the  experimental  data  the percentage removal of 84.10% obtained at an optimum initial concentration of 2 mg/l, an optimum adsorbent dose of 1.5 g and optimum contact time of 40 minutes. Experimental data were best fitted by the Langmuir Isotherm with R²=0.9024 other than the Freudlich Isotherm, R²=0.568. The pseudo second order kinetic with R²= 1 best fit the adsorption process other than the pseudo second order kinetics,  R²=0.933. Therefore, montmorillonite-silica  nanocomposite  obtained  from montmorillonite clay and Rice husk ash can serve as a cost-effective adsorbent in the removal of Congo red dye.

Author(s) Details

Dr Danbature Wilson Lamayi
Department of Chemistry, Faculty of Science, Gombe State University, Gombe, Nigeria.

Zaccheus Shehu
Department of Chemistry, Faculty of Science, Gombe State University, Gombe, Nigeria.

View Volume:


Popular posts from this blog

Empowerment and Leader Member Exchange towards Organizational Citizenship Behavior Readiness among Government Workforce in Malaysia | Book Publisher International

  State agencies are among the most significant entities that represent the public's needs, and their programmes are essential to a state's and the nation's economic growth and development. State agencies have been rife by public concerns for years, as demonstrated by the Public Complaints Bureau, as problems of inefficiency in service quality and delivery have yet to meet the public's standards. With the support of 15 employees from state agencies on Malaysia's east coast, this study aims to achieve three targets. The first and second objectives are to investigate the ties between leader-member exchange (LMX) and OCB empowerment. The final aim is to define the most significant factors that affect OCB willingness. A total of 288 people took part in the survey, which was conducted using a cluster sampling process. The survey items had achieved the necessary reliability, according to the pilot test results, and some sub-dimensions were renamed after factor analysis.

Re-asserting Cultural Perspectives: Old People and New Ideas in Bole Butake’s Lake God and The Survivors and Sankie Maimo’s Succession in Sarkov | Chapter 10 | Perspectives of Arts and Social Studies Vol. 2

African cultures have undergone transformations from the colonial period to the present, often to the detriment of its cultural evolution and within the larger global community. As it were, colonial education subordinated African communalism and created in its place an anti-African spirit evident in the assimilation of western values. This did not only end up in a kind of cultural betrayal, but also posed as a serious threat to the dignity and identity of the people. Those who fall prey to this kind of cultural imperialism are the young people who are often irrationally carried away by western fashion and modes that they tend to neglect and/or forget their cultural ways of life as they join the race of “progress.” This situation has given rise to a conscious effort by creative writers to re-assert and protect African values while at the same time liberating themselves from the longstanding western effort at suppressing, controlling and dominating their thoughts particularly through n

The Utilization of Agro-Waste: A Nanobiotechnology Point of View | Chapter 10 | Recent Advances in Biological Research Vol. 5

Aims: To review the utilization of agro-waste in the eco-friendly synthesis of nanoparticles and their biomedical, catalytic and industrial applications. Study Design: A review. Place and Duration of Study: This review was carried out in the interim of three weeks exploiting all relevant data, literature and publications where necessary. Methodology: Profound gathering of literatures/publications and reviews were employed with all carefulness and professional courtesy; enough useful information were gathered over time. The introduction emphasizes the dawn of science and technology, when great ideas were still latent later leading to the advent of history changing innovations like the completion of human genome and then the birth of nanotechnology. Although, nanotechnology had been known decades been popularized by Richard Feynman in his talks in the year 1959; and in this present dispensation, nanotechnology has been a solution to many intricate challenges/ t