This document proposes developing affordable chemiresistive sensors to determine heavy metal concentration in water. Heavy metals like lead, nickel, copper, and chromium from industries have contaminated many rivers in India. The proposed solution is to use phenolic waste from other industries to create reusable, conductive films for chemiresistive sensors through laser ablation. The objectives are to develop a highly conductive microchannel sensor film and test its effectiveness in measuring heavy metals in water sources. The methodology involves collecting, purifying phenolic waste, synthesizing conductive films, laser ablation to create channels, and sensor testing. A budget and timeline of 3 years are provided.
12-13 May 2016 - India's Policy Dialogue
International Workshop on Extended Producer Responsibility in India: Opportunities, Challenges and Lessons from International Experience, New Delhi, India.
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One Pot Synthesis, Characterization of Zn GO Nanocomposite for the Electroche...ijtsrd
A facile one pot efficient synthetic approach has been adopted to prepare Zn GO nanocomposite material from the synthesized GO. The X ray diffraction XRD analysis revealed the formation of Zn GO structure from the zinc chloride precursor during the synthesis. The surface characteristics and elemental composition of the nanocomposites have been studied by means of scanning electron microscopy SEM , energy dispersive spectroscopy EDS . The characterization of the Zn GO composites suggested that the metal is uniformly dispersed in the graphene matrix and gives evidence indicates that the flake like nanosheets are GO, which are formed and interface and we can see good compatibility between the graphite oxide and the zinc matrix. Electrochemical decoloration of an aqueous solution of a textile dye Acid Red 10B was investigated under different experimental conditions by using carbon electrodes. Our findings revealed that the electrodes evidenced great dye decoloration abilities to treat solutions containing this dye, in the presence of the synthesized nanocomposite. The influence of the synthesized nanocomposite was remarkable in the electrochemical dye decoloration process and ~100 color removal was found by the addition of 0.004g nano composite per 250 mL of the dye solution. Ganesha Achary "One Pot Synthesis, Characterization of Zn-GO Nanocomposite for the Electrochemical Decoloration of a Textile Dye" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-3 , April 2022, URL: https://www.ijtsrd.com/papers/ijtsrd49437.pdf Paper URL: https://www.ijtsrd.com/chemistry/physical-chemistry/49437/one-pot-synthesis-characterization-of-zngo-nanocomposite-for-the-electrochemical-decoloration-of-a-textile-dye/ganesha-achary
12-13 May 2016 - India's Policy Dialogue
International Workshop on Extended Producer Responsibility in India: Opportunities, Challenges and Lessons from International Experience, New Delhi, India.
12-13 May 2016 - India's Policy Dialogue: International Workshop on Extended Producer Responsibility in India: Opportunities, Challenges and Lessons from International Experience, New Delhi, India.
One Pot Synthesis, Characterization of Zn GO Nanocomposite for the Electroche...ijtsrd
A facile one pot efficient synthetic approach has been adopted to prepare Zn GO nanocomposite material from the synthesized GO. The X ray diffraction XRD analysis revealed the formation of Zn GO structure from the zinc chloride precursor during the synthesis. The surface characteristics and elemental composition of the nanocomposites have been studied by means of scanning electron microscopy SEM , energy dispersive spectroscopy EDS . The characterization of the Zn GO composites suggested that the metal is uniformly dispersed in the graphene matrix and gives evidence indicates that the flake like nanosheets are GO, which are formed and interface and we can see good compatibility between the graphite oxide and the zinc matrix. Electrochemical decoloration of an aqueous solution of a textile dye Acid Red 10B was investigated under different experimental conditions by using carbon electrodes. Our findings revealed that the electrodes evidenced great dye decoloration abilities to treat solutions containing this dye, in the presence of the synthesized nanocomposite. The influence of the synthesized nanocomposite was remarkable in the electrochemical dye decoloration process and ~100 color removal was found by the addition of 0.004g nano composite per 250 mL of the dye solution. Ganesha Achary "One Pot Synthesis, Characterization of Zn-GO Nanocomposite for the Electrochemical Decoloration of a Textile Dye" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-3 , April 2022, URL: https://www.ijtsrd.com/papers/ijtsrd49437.pdf Paper URL: https://www.ijtsrd.com/chemistry/physical-chemistry/49437/one-pot-synthesis-characterization-of-zngo-nanocomposite-for-the-electrochemical-decoloration-of-a-textile-dye/ganesha-achary
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About the Speaker
===============
Diogo Sousa, Engineering Manager @ Canonical
An opinionated individual with an interest in cryptography and its intersection with secure software development.
Doctoral Symposium at the 17th IEEE International Conference on Software Test...
Research Methodology
1. Design of Chemiresistive Sensors to determine the
concentration of heavy metals in natural water bodies
SDG: Water & Sanitation
Siddharth Singh
21CHE230
Master in Chemical Engineering
2. Background
• Report of Central Water Commission, India 2019 mention the following data:
• The contaminated water when consumed leads to serious hematological and brain
damage, kidney malfunctioning.
• The sources of these heavy metals are mining, milling, plating and surface
finishing industries.
Contaminant Permissible Limit (μg/L) Number of Rivers
Lead (Pb) 10 69
Nickel 20 31
Copper 50 10
Chromium 50 22
Cadmium 3 24
Iron 300 142
3. Problem Statement
• “Development of affordable CHEMIRESISTIVE SENSORS for determining the
heavy metal concentration in natural water bodies”.
• CHEMIRESISTIVE SENSORS are costly and fabrication requires complex
arrangements.
• CHEMIRESISTIVE SENSORS based on phenolic films are not reusable.
4. Solution of the Problem
• Chemical, Pharmaceutical, Pulp & paper, wood products, non-metallic mineral
products sector, steel & metal, Petroleum refining industries excrete phenol in the
environment as waste in large quantities.
• This utilization of waste phenol can balance the high manufacturing cost of
sensors as well as valorization techniques can be utilized to recover phenol back
after each use.
6. Objectives
• To develop a highly conductive micro channel engraved phenolic film-based
CHEMIRESISTIVE SENSOR.
• To check its promptness as a sensor for determining heavy metal concentration in
natural water bodies.
• Investigate methods to recover phenol & other chemicals and recycling them back
for next batch of CHEMIRESISTIVE SENSOR.
7. Deliverables
• A new approach including materials to developing Chemiresistive
sensors for inorganic and organic matter, and also biomolecules.
• A device that is efficient and scalable.
• Patents and publications
8. Methodologies Connected to objectives
• Collecting impure phenolic waste from target industries.
• Purification of phenolic waste for obtaining phenol at suitable purity.
• Set up of Experiment assembly including procurement of accessories.
• Synthesis of highly conductive rGO/phenolic films.
• Testing mechanical strength & improving over it.
• LASER ablation on film to create capillaries on the film.
• Testing the sensor for water bodies in different regions.
9. Gantt Chart, Milestones, Timeline
Activities Months
0-3 4-9 10-14 15-19 20-24 25-29 30-33 34-36
Literature Survey
Collecting phenolic waste
Experiment Assembly Set up &
Procurements
Purification of phenolic waste
Synthesis of highly conductive
phenolic films
Testing mechanical strength
LASER ablation
Testing the sensor for water bodies
10. Budget
Item Budget In Rupees
1st Year 2nd Year 3rd Year Total
A. Recurring
1. Salaries/wages 7,92,000 7,92,000 7,92,000 23,76,000
2. Consumables,
including analytical charges
6,00,000 6,00,000 6,00,000 18,00,000
3. Travel 50,000 50,000 50,000 1,50,000
4. Contingency costs 75,000 75,000 75,000 2,25,000
B. Equipment* 5,00,000 - - 5,00,000
Grand Total (A+B) 50,51,000
Overhead (maximum) 5,00,000
Support Request from Funding Agency 55,51000
